It might surprise many to learn that there is a part of the human body that does not grow after birth it remains the same size from the moment we are born until the day we die. That body part is the cornea of the eye.
The cornea is the clear, dome-shaped outer layer that covers the front of the eye, playing a crucial role in focusing vision. When a baby is born, the cornea measures about 10 millimeters in diameter, and it maintains that size throughout a person’s life.
Unlike other parts of the body, such as the bones, muscles, and even the eyeball itself, the cornea does not change in size as we age. This is because its primary function bending and focusing light onto the retina requires precise curvature and size for accurate vision. If it were to grow or change significantly, it could affect how we see the world.
Interestingly, many people mistakenly think that other body parts, like the ear or nose, stop growing, but these parts actually do change slightly over time due to cartilage changes and gravity.
The cornea stands out as the exception, staying the same from birth to death, quietly supporting our ability to see clearly every day.